Abstract: An image transmission device includes: a frequency detector configured to detect a frame rate of an image frame and output a frequency switching mark signal when detecting that the frame rate changes; a frequency configuration device configured to output a first configuration signal according to a safe frequency step value in response to the frequency switching mark signal; a frequency processor configured to output a reference clock signal, adjust a frequency of the output reference clock signal repeatedly according to the first configuration signal, and until a frequency of an adjusted reference clock signal is substantially equal to a frequency of a reference clock signal corresponding to a changed frame rate, end adjustment; and an image frame transmitter configured to convert a format of the image frame into a format corresponding to the image frame transmitter according to the adjusted reference clock signal, and output the format-converted image frame.

Abstract: An image processing method includes: using image data of a first image as image data of a base region, wherein the first image has a first resolution; and generating, based on the image data of the first image, image data of an extended region according to extension policies, so as to obtain image data of a second image including the image data of the base region and the image data of the extended region, wherein the second image has a second resolution, and the first resolution is less than the second resolution.

Abstract: Display control method, display control device, non-transitory computer-readable storage medium and display device are disclosed. The display control method including: performing following steps in response to a data visualization display instruction: in response to a coordinate selection instruction, determining target coordinate position corresponding to the coordinate selection instruction in source image displayed on display panel, and determining an active region at least covering the target coordinate position according to the target coordinate position; acquiring image information of the active region; generating at least one image to be superimposed according to the image information of the active region, with the at least one image to be superimposed including pattern configured to represent the image information of the active region; and superimposing each image to be superimposed on the source image to obtain an output image, and outputting the output image to the display panel to be displayed.

Abstract: An image transmission device includes: a frequency detector configured to detect a frame rate of an image frame and output a frequency switching mark signal when detecting that the frame rate changes; a frequency configuration device configured to output a first configuration signal according to a safe frequency step value in response to the frequency switching mark signal; a frequency processor configured to output a reference clock signal, adjust a frequency of the output reference clock signal repeatedly according to the first configuration signal, and until a frequency of an adjusted reference clock signal is substantially equal to a frequency of a reference clock signal corresponding to a changed frame rate, end adjustment; and an image frame transmitter configured to convert a format of the image frame into a format corresponding to the image frame transmitter according to the adjusted reference clock signal, and output the format-converted image frame.

Abstract: A data processing apparatus has an operation mode including a first mode; in the first mode: an image data receiving circuit in the data processing apparatus is configured to receive first image data sent by a main board; a touch information receiving circuit is configured to receive touch position information; a position analysis circuit is configured to acquire backlight division information corresponding to the touch position information, according to the touch position information, to obtain first backlight data; a backlight data selection circuit is configured to select and output the first backlight data to a backlight-source-to-be-driven; and an image data selection circuit is configured to output first compensated image data to a display-panel-for-displaying; where the first compensated image data are data obtained by compensating the first image data according to the first backlight data.

Abstract: Provided in the present disclosure is a display control method. The method includes: receiving video streams sent by a plurality of video sources, and acquiring a second priority parameter corresponding to each video stream; according to a first priority parameter which is pre-configured for each display area of a display apparatus, and the second priority parameter for each video stream, obtaining a video stream corresponding to each display area; and according to the video stream corresponding to each display area, generating image data, and sending the image data to the display apparatus for display. Further provided in the present disclosure are a display control apparatus, a display device, and a computer-readable medium.

Abstract: A data processing method is applied to a display apparatus. A display panel in the display apparatus includes pixels, and a backlight module thereof includes backlight units each corresponding to a position of one or more pixels. The method includes: in an (N?1)-th sliding window period, sampling a backlight data set, and storing an obtained N-th backlight data subset, the backlight data set including first backlight values of at least one row of backlight units, the at least one row of backlight units including an M-th roe of backlight units; and in an N-th sliding window period, sampling the backlight data set, storing an obtained (N+1)-th backlight data subset, and calculating a compensation coefficient of at least one pixel, in pixels corresponding to the M-th row of backlight units, that corresponds to the N-th backlight data subset according to the N-th backlight data subset.

Abstract: A data transmission method, applied to a security platform in an IoT system, including: receiving a first request data packet including feature data and collection channel information corresponding to the feature data; matching the feature data in the first feature database; in response to feature information matched with the feature data existing in the first feature database, generating a first feedback data packet, and sending it to the service terminal, so that the service terminal performs operations according to the first feedback data packet; and generating a match success result data packet, performing an encryption operation on the match success result data packet, and sending an encrypted match success result data packet to the server, so that the server obtains the match success result data packet through a decryption operation, and performs a service recording according to the match success result data packet.

Abstract: The present disclosure provides a data processing device and control method thereof, and a display device. The data processing method includes: a write controller configured to write video image data and human-machine interaction interface information into a memory; a first read controller configured to read the video image data from the memory; a second read controller configured to read the human-machine interaction interface information from the memory; a superimposer configured to superimpose the video image data and the human-machine interaction interface information to obtain target image information; and a command controller configured to control the write controller to write the human-machine interaction interface information into the memory and turn on the superimposer after receiving a turn-on command, and control the write controller to stop writing the human-machine interaction interface information into the memory and turn off the superimposer after receiving a turn-off command.

Abstract: A cloud-edge collaboration method is provided, a data transmission apparatus, a cloud platform, an edge device, a cloud-edge collaboration system, an electric device, and a computer readable medium. The cloud-edge collaboration method includes: receiving first information sent by an edge device, the first information at least comprising image feature information of an image to be recognized; determining whether a local feature library comprises reference feature information matching the image feature information; if the local feature library includes reference feature information matching the image feature information, generating a first determination result, and sending the first determination result to the edge device.

Abstract: A method for processing an image frame includes: obtaining an image frame to be displayed; determining whether pixel data in the image frame to be displayed is lost; and using preset replacement data as data of target pixels in the image frame to be displayed, in response to determining that the pixel data in the image frame to be displayed is lost.

Abstract: Provided is a video processor. The video processor includes: a receiving module, configured to receive source video display data and parse the source video display data as valid video display data; a pre-processing module, configured to generate valid video display data in a predetermined video format; an image quality processing module, configured to adjust image quality parameters to output a first video screen; a post-processing module, configured to extract video parameters, generate a blended screen, and blend the blended screen on the first video screen; and a video output module, configured to perform data format conversion on valid video display data of the first video screen and valid video display data of the blended screen to encapsulate as output video display data, and output the output video display data to an external display to blend the blended screen on the first video screen.

Abstract: A test system for stability of video interfaces includes a display, a signal generator, a controller, and an image capturing sensor. The signal generator is configured to transmit multiple video signals to multiple video interfaces of the display. The controller is configured to control the display to sequentially display images according to each video signal. The image capturing sensor is configured to capture the images displayed sequentially by the display according to each video signal, and detect whether an image corresponding to each video signal is abnormal, and transmit a detection result to the controller.

Abstract: Disclosed are a device and method for processing video data, and a display system. The device for processing video data includes: a first acquisition module, a second acquisition module, a storage module and a processing module. The first acquisition module is configured to determine, in response to receiving an image quality adjustment parameter, whether the image quality adjustment parameter meets a preset condition, and send the image quality adjustment parameter to the storage module. The storage module is configured to cache the image quality adjustment parameter, and send the image quality adjustment parameter to the processing module. The second acquisition module is configured to acquire original video data, and send the original video data to the processing module. The processing module is configured to perform data processing on the original video data according to the image quality adjustment parameter to generate target video data.

Abstract: Disclosed are a video processing device, a video processing method, a monitor apparatus, a computer device, and a computer-readable medium. The video processing device includes: a receiver, a normalization processor, a selector and an image processor. The receiver is configured to receive an original video image. The normalization processor includes a plurality of normalization sub-circuits each configured to perform format adjustment on the original video image to generate a video image in a target format. Different normalization sub-circuits perform the format adjustment in different manners. The selector is configured to output the video image generated by at least one of the normalization sub-circuits to the image processor according to a received selection instruction; and the image processor is configured to generate an image to be displayed from the received video image.

Abstract: A digital oscilloscope includes a video input interface, a data processing system, a video output interface, and a clock system. The video input interface is configured to receive a digital video signal; the data processing system receives the digital video signal and processes the digital video signal to generate an oscillogram signal, which includes an oscillogram image and further includes one of a menu image and a frame image of the digital video signal; and the video output interface is connected to the data processing system, receives the oscillogram signal and outputs it to external terminals. The oscilloscope can display a variety of image information, with high intuitiveness, simplified structure, improved portability, and is convenient to use in outdoor places.

Abstract: The present disclosure provides a method and device of transmitting a video signal, a method and device of receiving a video signal, and a display device. The method of transmitting the video signal includes: acquiring the video signal, wherein the video signal contains a plurality of frame data; embedding configuration data for at least one frame data of the video signal in a previous invalid interval of the at least one frame data; and transmitting the video signal embedded with the configuration data.

Abstract: A display device includes a first processor, a second processor, and a display module. The first processor is configured to: acquire version information of the second processor upon completion of startup of the second processor; determine version information of the corresponding first processor based on version information of the second processor; load a second configuration file corresponding to the version information of the first processor to output a second display screen associated with the second configuration file to the display module. The display module is configured to display the second display screen.

Abstract: Provided is a method for transmitting video signals, including: receiving an input video signal provided by a source, wherein the input video signal includes an image signal and a source timing signal; generating a pulse synchronization signal based on the source timing signal and an output frame rate, wherein the output frame rate is a frame rate of outputting the image signal to a display module, and a cycle of the pulse synchronization signal is an integer multiple of a cycle of the source timing signal, and is an integer multiple of a cycle corresponding to the output frame rate; generating an output timing signal based on the pulse synchronization signal; and transmitting an output video signal to the display module, wherein the output video signal includes the image signal and the output timing signal.

Abstract: A display driving device and a control method thereof, and a display device. The control method includes: generating, by the master processing chip, a read/write synchronization signal, and receiving, by each of the slave processing chip, the read/write synchronization signal; in response to the read/write synchronization signal, caching, by the master processing chip, the received display data of the current to-be-displayed frame image into the frame address of the corresponding memory, reading and processing cached display data of a previous to-be-displayed frame image and transmitting the processed display data; and in response to the read/write synchronization signal, caching synchronously, by each of the slave processing chip, the received display data of the current to-be-displayed frame image into the frame address of the corresponding memory, and reading and processing synchronously cached display data of the previous to-be-displayed frame image and transmitting the processed display data.